Assume we have a set of training silhouettes from N target types belonging to one of Q classes imaged under M different views.
A miniature train, a line of lit-up windows, speeds across the stage; a character then appears inside a full-size version of such a train, silhouetted against one of those windows.
Clacking freight trains silhouetted against a fading late autumn sunset, the peripheral blur of trees speeding by a moving boxcar, the hollow glare of anonymous gas stations and bus depots, and the desolation of shabby bars and luncheonettes on the wrong side of the tracks: these are some of the recurrent images that lend Ed Radtke's melancholy road film "The Dream Catcher" an enveloping sadness.
Seen from the desert outside Winslow, Arizona, it was apparent that Doug Aitken's piece, which he called a "nomadic light sculpture," was dancing over the outer walls of a moving train silhouetted in the full moonlight.
"The accused trained on silhouette targets," he told the jury.
This algorithm needs a large amount of storage and computation for training the object silhouette, which is not suitable for real-time multimedia sensor networks.
One early attempt of using CS algorithm for object detection is to utilize the sampled measurements of the image background to train an object silhouette firstly, and then use the trained object silhouette to detect the moving object [12].
Its whistles can be heard as one studies his piece, "Train of Thoughts," a silhouette of an 1886 steam locomotive, made of canvas stretched over a wood frame.
With the method described in the above section, we extract human silhouettes from training video sequences and describe them with normalized SCD.
"It takes a great deal of work to maintain a good silhouette: I train like an athlete.
